388901 has 2 divisors, whose sum is σ = 388902. Its totient is φ = 388900.

The previous prime is 388897. The next prime is 388903. The reversal of 388901 is 109883.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276676 + 112225 = 526^2 + 335^2 .

It is an emirp because it is prime and its reverse (109883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 388901 - 2² = 388897 is a prime.

Together with 388903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194450 + 194451.

It is an arithmetic number, because the mean of its divisors is an integer number (194451).

2³⁸⁸⁹⁰¹ is an apocalyptic number.

It is an amenable number.

388901 is a deficient number, since it is larger than the sum of its proper divisors (1).

388901 is an equidigital number, since it uses as much as digits as its factorization.

388901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 388901 is about 623.6192748785. The cubic root of 388901 is about 72.9927433833.

The spelling of 388901 in words is "three hundred eighty-eight thousand, nine hundred one".